(2C, C3), 124.0 (2C, C2), 70.3 (2C, C6), 63.8 (1C, C1), 60.2 (2C, C5),
27.3 (2C, C7 or 8), 26.0 (2C, C7 or 8).31P NMR (121 MHz, CD3CN)
d/ppm: -144.6 (septuplet JPF = 704.7 Hz). MS (ES): m/z 1443.2
[L2AuIII2Br4PF6]+, 649.6 [L2AuIII2Br4]2+, 569.7 [L2AuII2Br2]2+, 488.7
[LAuI]+. UV-vis (CH3CN) lmax/nm (e/104 M-1 cm-1): 220 (4.3), 258
(3.0).
19 M. R. Fructos, T. R. Belderrain, P. de Fre´mont, N. M. Scott, S. P.
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´
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Complex 18. Complex 15 was dissolved (0.118 g, 0.09 mmol)
in a mixture of acetonitrile (2 mL) and bromine (0.011 mL,
0.215 mmol). The solution was stirred at room temperature for 1 h.
The volume of acetonitrile was reduced to 0.5 mL under vacuum,
and at the same time the excess bromine was removed. Then 2 mL
of diethylether was added to produce a yellow precipitate. The
desired product was obtained after filtration as a yellow solid
(0.122 g, 83% yield). Anal. calcd for C34H56N8O4P2F12Br2Au2: C
24.83, H 3.43, N 6.81. Found: C 24.73, H 3.24, N 6.54. 1H NMR
(250 MHz, CD3CN) d/ppm: 7.61 (bs, 2H, H3), 7.57 (bs, 2H, H4),
4.40 (t, 4H, H2, 3J = 7.4 Hz), 4.28 (s, 4H, H6), 3.42 (s, 2H, OH),
2.60 (m, 2H, H1), 1.27 (s, 12H, H8,9). 13C NMR (75 MHz, CD3CN)
d/ppm: 150.3 (2C, C5), 126.8 (2C, C4), 122.7 (2C, C3), 70.4 (2C, C7),
60.2 (2C, C6), 48.7 (2C, C2), 31.3 (1C, C1), 26.6 (4C, C8,9). 31P NMR
(121 MHz, DMSO-d6) d/ppm: -144.6 (septuplet JPF = 708.8 Hz).
MS (ES): m/z 1498.8 [L2AuIII2Br4PF6]+, 677.4 [L2AuIII2Br4]2+,
597.5 [L2AuII2Br2]2+, 517.3 [LAuI]+. UV-vis (CH3CN) lmax/nm
(e/104 M-1 cm-1): 220 (4.4).
25 L. Ricard and F. Gagosz, Organometallics, 2007, 26, 4704.
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Acknowledgements
39 V. J. Catalano and A. O. Etogo, J. Organomet. Chem., 2005, 690,
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This work was supported by the Centre National de la Recherche
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